95 Sierra by Cobra Slide-Out

I have a 95 Sierra by Cobra 26' 5th wheel. It has a hydraulic slide out for the couch/dining. The slide out went out but I can't get it to come back in. You can here the motor but it isn't moving back in (it moved about a foot back in but won't go any farther). I just replaced the battery but that didn't help. Anyone have any ideas on what could be wrong or how to bring the slide out in manually?

Thanks